<template>
  <div>
    <div class="search">
        <input type="text" v-model="keyword" class="search-input" placeholder="输入城市名或拼音">
    </div>
    <div class="search-content" ref="search" v-show="keyword">
      <ul>
        <li class="search-item border-bottom" v-for="item of list" :key="item.id" @click="handleCityClick(item.name)">{{item.name}}</li>
        <li class="search-item border-bottom" v-show="hasNoData">无匹配</li>
      </ul>
    </div>
  </div>
</template>

<script>
import Bscroll from 'better-scroll'
import { mapActions } from 'vuex'
export default {
  name: 'CitySearch',
  props: {
    cities: Object
  },
  data () {
    return {
      keyword: '',
      list: [],
      timer: null
    }
  },
  computed: {
    hasNoData () {
      return !this.list.length
    }
  },
  methods: {
    handleCityClick (city) {
      this.changeCity(city)
      this.$router.push('/')
    },
    ...mapActions(['changeCity'])
  },
  watch: {
    keyword () {
      if (this.timer) {
        clearTimeout(this.timer)
      }
      if (!this.keyword) {
        this.list = []
        return this.list
      }
      this.timer = setTimeout(() => {
        const result = []
        for (let i in this.cities) {
          this.cities[i].forEach(value => {
            if (value.spell.indexOf(this.keyword) > -1 || value.name.indexOf(this.keyword) > -1) {
              result.push(value)
            }
          })
        }
        this.list = result
        // console.log(this.list)
      }, 100)
    }
  },

  mounted () {
    this.scroll = new Bscroll(this.$refs.search)
  }

}
</script>

<style lang="stylus" scoped>
@import '~styles/varibles.styl'
  .search
    height : .72rem
    padding : 0 .1rem
    background-color : $bgColor

  .search-input
    box-sizing : border-box
    height : .62rem
    line-height : .62ren
    width : 100%
    padding : 0 .1rem
    text-align : center
    border-radius : .06rem
    color : #666

  .search-content
    position : absolute
    overflow : hidden
    top : 1.58rem
    left : 0
    right : 0
    bottom : 0
    z-index : 1
    background-color : #eee

  .search-item
    line-height : .62rem
    padding-left : .2rem
    color : #666
    background-color : #fff
</style>
